Leviticus 16:29

29“And it shall be a statute to you forever that a  in the seventh month, on the tenth day of the month, you shall b  afflict yourselves
Or  shall fast; also verse 31
and shall do no work, either d  the native or the stranger who sojourns among you.

Leviticus 16:31

31 e  It is a Sabbath of solemn rest to you, and you shall f  afflict yourselves; it is a statute forever.

Numbers 29:7

Offerings for the Day of Atonement

7 g  “On the tenth day of this seventh month you shall have a holy convocation and h  afflict yourselves.
Or  and fast
You shall do no work,

Psalms 69:10

10When I wept and humbled
Hebrew lacks  and humbled
my soul with fasting,
it became my reproach.
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